To change the incidences of a selected set of beams, use the following procedure.

1. Select one or more members in the view window.
2. On the Utilties ribbon tab, select the Beam Tools > Beam Incidence tool in the Geometry Tools group.
   
   The Redefine Incidence dialog opens.
3. Select an incidence definition to use:

   Switch incidences of selected beams

   or

   Set the incidence order of the seleted beams so that the start node is close to the origin than end node

   or

   Set the incidence order of the seleted beams so that the start node is farther from the origin than end node

4. Click OK.